[{"id":227412,"question":"In a pure inductive A.C. circuit the current.","choices":[{"text":"Lags behind voltage by 90 <sup>o</sup>","value":"A"},{"text":"Leads the voltage by 90 <sup>o</sup>","value":"B"},{"text":"In phase with voltage","value":"C"},{"text":"Leads the voltage by 270 <sup>o</sup>","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227411,"question":"The device which allows only the continuous flow of AC through it is.","choices":[{"text":"Inductor","value":"A"},{"text":"Battery","value":"B"},{"text":"Thermistor","value":"C"},{"text":"Capacitor","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":227410,"question":"In pure capacitor A.C. circuit, the current I and charge q are.","choices":[{"text":"In phase","value":"A"},{"text":"Out of phase","value":"B"},{"text":"Parallel to each other","value":"C"},{"text":"None of above","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":227409,"question":"If the frequency of A.C. supplied is doubled then the capacitive reactance becomes.","choices":[{"text":"Half","value":"A"},{"text":"Two","value":"B"},{"text":"Four times","value":"C"},{"text":"One fourth","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227408,"question":"At high frequency the value of reactance of capacitor will be.","choices":[{"text":"Small","value":"A"},{"text":"Zero","value":"B"},{"text":"Large","value":"C"},{"text":"Infinite","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227407,"question":"100 micro F capacitor is connects to an AC voltage 24 V and frequency 50 Hz. The reactance of the capacitor is.","choices":[{"text":"30.8 Ohm","value":"A"},{"text":"31.8 Ohm","value":"B"},{"text":"34.8 Ohm","value":"C"},{"text":"40 Ohm","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":227406,"question":"The slope of q-t curve at any instant of time gives.","choices":[{"text":"Voltage","value":"A"},{"text":"Current","value":"B"},{"text":"Charge","value":"C"},{"text":"Botha a and b","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":227405,"question":"SI unit of reactance is.","choices":[{"text":"Ohm","value":"A"},{"text":"Mho","value":"B"},{"text":"Farad","value":"C"},{"text":"Henry","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227404,"question":"In the capacitive circuit of A.C. quantity when q= 0 the slope of q-t curve is.","choices":[{"text":"Maximum","value":"A"},{"text":"Minimum","value":"B"},{"text":"Zero","value":"C"},{"text":"Negative","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227403,"question":"The flow of D.C current is opposed by","choices":[{"text":"Resistor","value":"A"},{"text":"Induction","value":"B"},{"text":"Capacitor","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":227402,"question":"Direct current can not flow through.","choices":[{"text":"Inductor","value":"A"},{"text":"Resistor","value":"B"},{"text":"Transistor","value":"C"},{"text":"Capacitor","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":227401,"question":"In case of A.C. through resistor V and I are","choices":[{"text":"At 0<sup> o</sup> with each other","value":"A"},{"text":"At 180 <sup>o</sup> with each other","value":"B"},{"text":"At 90<sup> o</sup> with each other","value":"C"},{"text":"At 270 <sup>o</sup> with each other","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227400,"question":"Phase difference between V and I of an A.C through resistor is.","choices":[{"text":"Zero Degree","value":"A"},{"text":"90 <sup>o</sup>","value":"B"},{"text":"80<sup>o</sup>","value":"C"},{"text":"120<sup>o</sup>","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227399,"question":"The Basic circuit element in a D.C. circuits which controls the current and voltage is","choices":[{"text":"<div>Resistor</div>","value":"A"},{"text":"Inductor","value":"B"},{"text":"<div>Capisitor</div>","value":"C"},{"text":"Transistor","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":227398,"question":"The basic circuit element in A.C. circuit which controls current.","choices":[{"text":"Resistor only","value":"A"},{"text":"Capacitor only","value":"B"},{"text":"Inductor only","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":227397,"question":"An A.C. voltmeter reads 220 V, its peak value will be","choices":[{"text":"225 V","value":"A"},{"text":"240 V","value":"B"},{"text":"311.12 V","value":"C"},{"text":"300 V","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":227396,"question":"The sum of positive and negative peak value called.","choices":[{"text":"R.M.S. value","value":"A"},{"text":"P-P value","value":"B"},{"text":"Peak value","value":"C"},{"text":"Average value","value":"D"},{"value":"E"}],"correctAnswer":2}]